Free Practice Questions for Cisco 800-150 Exam

In the hierarchical network design model, theaccess layeris the first layer and serves as the entry point for end-user devices to connect to the network. This layer connects user devices such as PCs, IP phones, wireless access points, printers, and scanners to the network. It facilitates the initial connection between end-user devices and the network infrastructure. The access layer also enforces security policies and provides services such as VLAN membership, port security, and Quality of Service (QoS).​

Options A, C, and D refer to functions typically associated with the core or distribution layers, or with WAN connectivity, rather than the access layer.​

Within theFLDTECtraining, especially underMaintenance and RMA Procedures, there is a strong emphasis on safely transferring and adapting configurations from failed or decommissioned devices to replacement units.

The official guidance includes the following:

"When reusing a configuration from an old device, make sure to retain the necessary security elements such as username entries. This ensures the replacement device is still accessible under the correct user credentials."

Here's a breakdown of why the correct answer isB:

A. Remove all configurations under line vty 0 4:This would eliminate remote access settings, making it harder to manage the device.

B. Retain all username entries:Correct. Keeping the username entries ensures continued secure access and avoids loss of administrative control.

C. Keep all access-list commands intact:Not always required — ACLs are often tailored to interface-specific settings or environments which may differ between devices.

D. Add the enable password cisco command:Not a best practice. Default passwords (like cisco) should be avoided for security reasons, and it's not required if enable secret is already in use.

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PING→ Sends ICMP echo request packets to verify connectivity

Telnet→ Allows virtual terminal connections with unencrypted traffic

SSH→ Provides secure, encrypted remote access to network devices

IP address configuration→ Requires the PC and Cisco device to be in the same subnet for direct connection

These tools and their functions are covered under“Device Configuration and Verification”in the FLDTEC course:

PING:Utilized to test basic networkconnectivity using ICMP echo request/reply messages. It confirms whether a device is reachable and measures the round-trip time.

Telnet:A protocol that allows for remote device access but transmits data in plaintext, which makes it insecure. It's typically disabled by default on modern Cisco devices due to security concerns.

SSH (Secure Shell):Replaces Telnet as the preferred method for secure CLI access. It encrypts the session, protecting sensitive information such as login credentials.

IP Address Configuration:For direct device access via the same local network, both the PC and the Cisco device must be in the same subnet. This allows the use of tools like browser-based GUIs or terminal emulators when connecting directly.

The commandcopy tftp: running-configis used to retrieve a configuration file from a TFTP server and merge it with the current running configuration of a Cisco device. Thisoperation is additive, meaning it integrates the new configuration commands into the existing running configuration without removing any pre-existing commands unless explicitly overridden.​

This method is particularly useful when restoring configurations to a replacement device, as it allows for the seamless integration of necessary settings without disrupting the current operational state.​

In contrast, usingcopy tftp: startup-configwould overwrite the startup configuration file, which could lead to unintended consequences upon the next device reload. The optionsload tftp: running-configandmerge tftp: running-configare not valid Cisco IOS commands.​

Cisco 8000Series routers are primarily designed for service provider and web-scale networks, offering high-performance routing capabilities to handle large-scale, high-bandwidth environments typically found in service provider infrastructures and data centers.

The Cisco 8000 Series routers are part of Cisco’s high-performance routing portfolio. As documented in the official Cisco product and FLDTEC study materials:

Cisco 8000 Series routers are purpose-built for service provider and cloud-scale datacenters.

They are designed to support massive bandwidth, 5G core, and edge routing demands.

These routers provide scalable, high-performance architecture, using Cisco Silicon One ASICs, enabling terabits of throughput with advanced telemetry and network programmability.

Why the other options are incorrect:

A. Remote branches and retail typically use ISR/ASR 1000/1100 Series.

C. Home or small business networks use Cisco RV Series or Meraki MX Series.

D. LAN access/distribution layers in campuses commonly use Catalyst 9000 Series switches or ISR routers, not high-end core routers.

The 8000 Series is typically found in service provider core, data center interconnect, and hyperscale cloud deployments (e.g., Google, Meta, AWS).

Right-To-Use (RTU) licensesare locally managed licenses that allow users to activate specific features on Cisco devices without the need for external tools or connectivity to Cisco's licensing infrastructure. These licenses operate on an honor-based system, where the user agrees to comply with the licensing terms without mandatory enforcement mechanisms.​

In contrast:​

Hybrid licensescombine aspects of traditional and smart licensing models.

PAK (Product Authorization Key) licensesrequire registration and activation through Cisco's licensing portal.

Smart licensesnecessitate communication with Cisco's Smart Licensing servers for activation and management.​

In theFLDTEC curriculum, technicians are trained on physical tools essential for support in the field. These tools and their uses are explained as follows:

Flash Card Reader:Used with removable CompactFlash cards commonly found in older Cisco routers and switches. These cards hold the IOS image or config files.

USB Thumb Drive:Used for transferring IOS files or configs directly to and from Cisco devices that support USB storage. Convenient for portable backups.

RJ-45 Ethernet Loopback Connector:A diagnostic tool that loops the signal back into the port. Helps verify port functionality by simulating a live Ethernet connection.

RJ-45 Coupler:Allows two patch cables to be connected, effectively extending the reach of a cable — useful in setups where a single cable is not long enough.

This procedure is taught in theFLDTEC courseunder theDevice Configuration and Verificationsection and reflects standard field technician workflows:

Connect to the console portusing a console cable and terminal software (like PuTTY or Tera Term).

Access the CLIof the Cisco device by logging in via the console session.

Create a log fileor enable logging in the terminal emulator to begin capturing output.

Check the router statususing commands such as show running-config, show ip interface brief, or show version.

Save the output filefrom the terminal emulator for documentation, troubleshooting, or escalation.

This logical flow ensures accurate diagnostics and traceability during field support operations.

According toFLDTEC documentation and Cisco UCS architecture guides, each of these elements plays a distinct and essential role:

Fabric Interconnects (FI)– Act as the central switching and management point for the UCS domain, connecting servers to LAN and SAN.

Virtual Interface Cards (VICs)– Installed in servers, these adapters supportvirtualization of multiple NICs and HBAs, enabling dynamic profile assignment.

Fabric Extenders (FEXs)– Extend the I/O fabric from the FI to the chassis, reducing complexity and consolidating management.

Servers– Provide the actual compute resources and run workloads. These can bebladeorrack servershoused in the UCS chassis.

This structure is critical to theCisco Unified Fabric approach, which simplifies data center management through integration and automation.